Registering car-lock.



G. DANIEL &E. G. LEWIS. Y

REGISTBRINGCAR LOGK. APPLI GATION FILED IDEO. 2B, 1912.

1,062,539. Patented May 20, 19013.

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GEORGE DANIEL AND EDWARD Gr. LEWIS, OF MABSCOTT, WEST VIRGINIA.

REGISTERING GAR-Loox.

Specification of Letters Patent.

Patented May 2o, 1913.

T0 all whom t may concern:

Be it known that we, GEORGE DANIEL and EDWARD G. LEWIS, citizens of theUnited States,l residing at Mabscott, in the county of Raleigh and Stateof West Virginia, have invented new and useful Improvements inRegistering Car-Locks, of which the following is a specification.

This invention relates to registering car locks, t-he object in viewbeing to provide a lock especially designed for use in connection withsliding doors of railway box cars, whereby with the aid of a suitabledial, cooperating with the lock mechanism, a clear indication or recordis made each time the lock is operated in opening and closing the cardoor.

lVith the above and other objects in view, the invention consists in theconstruction, combination and arrangement of parts, as will behereinafter more fully described, illustrated in the accompanyingdrawings, and pointed out in the claims hereunto appended.

In the drawings: Figure 1 is an inside elevation, showing the lockapplied to a car door. Fig. 2 is a perspective view of the lock casing,showing the registering dial. Fig. 3 is a vert-ical longitudinal sectionthrough the lock case, showing the mechanism contained therein.

The lock contemplated in this invention comprises a substantiallyrectangular case 1, in which is arranged a latch bolt 2 pivot-- allymounted, at 3, intermediate its ends, and provided at one end with ahasp engaging shoulder 4E, and at the other end with a lateral extension5, normally held adjacent to a key hole 6, so as to be capable of beingoperated against by means of a key, as will be clearly understood bythose familiar with the art to which this invention pertains.

Beneath the latch bolt 2 are stationary stops 7 and 8, which serve tolimit the pivotal movement of the latch bolt, the latter being normallyheld in a certain predetermined position by means of a contractilespring 9, one end of which is connected to a lug 10 on one end of thelatch bolt, while the other end of said spring is" 'connected to a fixedpoint 11 within the case.

One end of the lock case is provided with an entrance opening 12 whichis adapted to receive the pivoted end portion 13 of a hasp, said hasphaving a base or fixed portion 14 which is secured to the side of thecar, either to the body of the car or the door, the part-s 13 and 14 ofthe hasp being hinged together, as shown at 15. Adjacent to its outerend, the member 13 of the hasp is provided with an opening 16 adapted toreceive the projection or shoulder 4 of the latch bolt, and the end ofsaid latch bolt is beveled, as shown at 17, so that when the end of thehasp is thrust inward through the entrance slot 12 in the case, it willride against the inclined edge 17 and thereby rock the latch bolt on itspivot 3, until the shoulder 4C snaps into engagement with the pening 16in the hasp, thereby locking the oor.

To unlock the door, a key is inserted through the key hole 6, so as tocoperate with the extension 5 of the latch bolt, which has the effect ofmoving the shoulder Ll out of engagement with the hasp, permitting thelatter to be again withdrawn through the entrance slot 12.

In order to register the number of times the lock is operated, weprovide a dial 18 on the outside of the car, where it may be plainly andeasily observed, and in connection with such dial, we employ anindicating hand 19 mounted on an arbor 2O journaleol in a suitablebearing on the car body. Mounted fast on the same arbor 20 is a ratchetwheel 21, while mounted loosely on said arbor is a disk 22 havingpivotally mounted thereon a pawl 23 adapted to engage the ratchet wheel21 for imparting an intermittent movement to the hand 19, causing thesame to travel around the dial and register with the graduationsthereon.

Connected `to the disk 22 is a rod 24k which extends upward and isconnected to the latch bolt 2, at the point 25, so that every ltime thelatch bolt 2 is rocked on its pivot,

motion is transmitted through the rod 24 to the disk 22. This causes thepawl to engage the ratchet wheel 21 and move the hand 19 a certaindistance.

26 designates a retarding spring mounted on the case and bearing againstthe periphery of the disk 22, for the purpose of preventing said diskfrom rotating too freely, thereby adding to the reliability of theregistering apparatus.

From the foregoing description, it will now be understood that in orderto unlock a car door, the latch bolt 2 must be rocked on its pivotalmounting, and therefore a certain amount of movement is imparted to theratchet wheel 21, moving the hand 19 a certain distance. A similarmovement is again obtained when the door is locked, for the reason thatas the hasp engages the latch bolt, the end thereof has to move downwardin order to receive and engage the hasp. Therefore, the graduations onthe dial 1S are so arranged and'numbered that the hand 19 will move adist-ance equal only to the space between adjacent graduations for eachtwo complete movements of the latch bolt 2. When the end of the route isreached, the observer by looking at the dial 18 may tell at a glancejust how many times the lock has been operated during the trip.

In order to reset the registering mechanism in readiness for anothertrip, a 'flexible connection such as ay cord or wire, indicated at 27,is attached to the pawl 23 and passes outward through an opening 2S,where it is provided with a ring or other form of handle 29, by pullingupon which the pawl 23 is moved out of engagement with the ratchetwheel, after which the operator may move the indicating hand 19, untilit stands at zero.

I/Vhat is claimed is:

1. A registering car lock, comprising a lock casing having a haspentrance, a key operated latch bolt pivotally mounted therein and havinga hasp engaging shoulder, a dial, an indicator hand, a ratchet wheelfast on the arbor of said hand, a disk loose on said arbor, a pawl onsaid disk engaging the ratchet wheel, and a connection between said diskand latch bolt whereby the movements of the latch bolt are transmittedto and indicated bythe hand upon the dial.

2. A registering car lock, comprising a lock casing having a haspentrance, a key operated latch bolt pivotally mounted therein and havinga lia-sp engaging shoulder, a spring acting to normally sustain thelatch bolt yieldingly in a horizontal position, a dial, an indicatorhand, a ratchet wheel fast on the arbor of said hand, a disk loose onsaid arbor, a pawl on said disk engaging the ratchet wheel, and aconnection between said disk and latch bolt whereby the movements of thelatch bolt are transmitted to and indicated by the hand upon the dial.

3. A registering car lock, comprising a lock casing having a haspentrance, a key operated latch bolt pivotally mounted therein and havinga hasp engaging shoulder, a dial, an indicator hand, a ratchet wheelfast on the arbor of said hand, a disk loose on said arbor, a pawl onsaid disk engaging the ratchet wheel, a connection between said disk andlatch bolt whereby the movements of the latch bolt are transmitted toand indicated by the hand upon ythe dial, and means for resetting theregistering mechanism embodying a device for lifting the pawl fromengagement with the ratchet wheel.

In testimony whereof we aiiix our signatures in presence of twowitnesses.

' GEORGE DANIEL.

EDWARD G. LEWIS. Witnesses:

ASHTON FILE, W. H. Finn.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents Washington, D. C.

